Medically reviewed by Christopher Lee, MD Key Takeaways Normal hemoglobin levels differ for men and women, with adult males ...

Medically reviewed by Steffini Stalos, DO Normal ferritin levels range from 15-150 ng/mL for females and 15-200 ng/mL for males.High ferritin levels can indicate an iron overload or ...

Mild magnesium deficiency may not cause symptoms at first, but an ongoing deficiency can lead to uncomfortable symptoms and ...

Doctors monitor lymphocyte and other blood cell levels to predict how your lymphoma will progress. Low lymphocyte counts may suggest that cancer has spread to your bone marrow, or it can be a side ...

Elevated prolactin levels can cause symptoms like irregular periods and nipple discharge. Low prolactin levels are less common and can cause a reduced milk supply in lactating individuals. High ...

Dear Dr. Roach: My mother’s blood test has a sodium level of 130 mEq/L. She is not on diuretics, and she does not have heart or kidney problems. She is on thyroid medication and omeprazole. Do I need ...

DEAR DR. ROACH: My mother’s blood test has a sodium level of 130 mEq/L. She is not on diuretics, and she does not have heart or kidney problems. She is on thyroid medication and omeprazole. Do I need ...

“Normal” levels of vitamin B12 may not be enough to ward off dementia, new research finds. Researchers at the University of California San Francisco studied 231 healthy older adults (averaging 71 ...